LONDON (Thomson Reuters Foundation) - Britain may be about to welcome its second woman prime minister but female politicians are still far from achieving equality with online abuse, objectification and misogyny plaguing British politics, a leading women's rights group said.

Interior minister Theresa May is set to become prime minister on Wednesday, succeeding David Cameron, who announced he was stepping down after Britons unexpectedly voted last month to quit the European Union (EU).

"We've got a very long way to go before women in politics are given a fair chance from the outset," Smethers told the Thomson Reuters Foundation.

Only 29 percent of Britain's members of parliament are women. The country ranks 39th in the world for female representation in parliament, behind Rwanda, Bolivia and Cuba, among others.

Smethers said she was disappointed by newspaper reports that focused on May's high heels and gender rather than her policies or capability as a prime minister who faces the task of steering Britain's withdrawal from the EU.

"While they're all being objectified and undermined andridiculedin that way, they're never going to be heard in the same way as men - they're always going to be battling for their right to be there [in politics]," Smethers said.

The focus on May's shoes has attracted widespread criticism on social media platforms such as Twitter and Facebook.

Campaigner Laura Bates, who runs the Everyday Sexism website, wrote in an opinion piece: "This kind of meaningless, sexist commentary takes valuable attention away from what we should be concentrating on."

"EMOTIONAL"

May is not the only woman politician who has come under sharp scrutiny recently.

Opposition Labour lawmaker Angela Eagle, who was once told to "calm down, dear" by Cameron during a heated exchange in parliament, was also challenged this week.

Eagle, who launched a bid on Monday to take over leadership of the Labour party was asked whether she was tough enough for the job after being seen shedding a tear while talking about her rival Jeremy Corbyn.

"Shouldn't you be able to control those emotions when you're under great stress?" Eagle was asked by a male journalist.

The politician, whose office has been vandalized with a brick thrown through the window, replied: "Being in touch with your emotions is quite an important thing. Politicians ought to be human beings and leaders can be human beings".

Smethers said the sexism female politicians face was "completely corroding" British politics, and could potentially prevent many women from becoming politicians.

"We need to have a unified voice where women and men stand up and say they will not tolerate this kind of abuse ... We should name misogyny for what it is," she said.

In the past two years, Scotland and Northern Ireland both elected their first female First Ministers.

Scottish National Party leader Nicola Sturgeon was first sworn in at 2014 and re-elected in May 2016, while Democratic Unionist Party's Arlene Foster became the first female leader of Northern Ireland in January.

If elected, Hillary Clinton will also become the first female U.S. president, joining 16 other female heads of state including Britain, Nepal, Germany and Taiwan.

Being in a position of influence means female leaders must continue to push for women's rights, close the gender pay gap and tackle domestic violence, Smethers said.

"We should be excited about seeing women there [in leadership] and absolutely it's worth celebrating. But, in and of itself, it's not enough," she said.

"Let's use the post-Brexit world that we're in so make sure there's absolutely no going back on women's rights."